#include<bits/stdc++.h>
using namespace std;

int main(int argc, char const *argv[])
{
    int n = 10;
    int *b = &n;
    int **p = & *p;
    cout<<1/100.00<<endl;

    printf("%d %d %d %d %d %d\n",n,&n,*b,b,&b,p) ;
    (*b)++;
    printf("%d %d %d %d %d %d\n",n,&n,*b,b,&b,p) ;

    n++;
    printf("%d %d %d %d %d %d\n",n,&n,*b,b,&b,p) ;


    int num1,num2,i=8;
    char a[9] = "12.00500";
    // sscanf(a,"%d.%d",&num1,&num2);
    // printf("%d %d\n",num1,num2) ;
    // sprintf(a,"%d.%d",num1,num2);
    puts(a);
    // a[3]='\0';
    // puts(a);
    while (1)
    {
        if(a[--i]==48) {
            a[i]='\0';
            }
        else
            break;

    }

    // for (int i = 8; i >6; i--){
    //     if(a[i]=='0') a[i]=0;

    // }
    puts(a);
    return 0;

}
